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Title: Catheter guided by optical coherence domain reflectometry

Abstract

A guidance and viewing system based on multiplexed optical coherence domain reflectometry is incorporated into a catheter, endoscope, or other medical device to measure the location, thickness, and structure of the arterial walls or other intra-cavity regions at discrete points on the medical device during minimally invasive medical procedures. The information will be used both to guide the device through the body and to evaluate the tissue through which the device is being passed. Multiple optical fibers are situated along the circumference of the device. Light from the distal end of each fiber is directed onto the interior cavity walls via small diameter optics (such as gradient index lenses and mirrored corner cubes). Both forward viewing and side viewing fibers can be included. The light reflected or scattered from the cavity walls is then collected by the fibers and multiplexed at the proximal end to the sample arm of an optical low coherence reflectometer. The system may also be implemented in a nonmedical inspection device.

Inventors:
 [1];  [2];  [3];  [4]
  1. Pleasanton, CA
  2. Livermore, CA
  3. Danville, CA
  4. Moss Beach, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
874409
Patent Number(s):
6384915
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Classifications (CPCs):
A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61B - DIAGNOSIS
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
catheter; guided; optical; coherence; domain; reflectometry; guidance; viewing; based; multiplexed; incorporated; endoscope; medical; device; measure; location; thickness; structure; arterial; walls; intra-cavity; regions; discrete; minimally; invasive; procedures; information; guide; evaluate; tissue; passed; multiple; fibers; situated; circumference; light; distal; fiber; directed; interior; cavity; via; diameter; optics; gradient; index; lenses; mirrored; corner; cubes; forward; included; reflected; scattered; collected; proximal; sample; arm; reflectometer; implemented; nonmedical; inspection; optical fiber; medical device; domain reflectometry; /356/

Citation Formats

Everett, Matthew, Colston, Billy W, Da Silva, Luiz B, and Matthews, Dennis. Catheter guided by optical coherence domain reflectometry. United States: N. p., 2002. Web.
Everett, Matthew, Colston, Billy W, Da Silva, Luiz B, & Matthews, Dennis. Catheter guided by optical coherence domain reflectometry. United States.
Everett, Matthew, Colston, Billy W, Da Silva, Luiz B, and Matthews, Dennis. Tue . "Catheter guided by optical coherence domain reflectometry". United States. https://www.osti.gov/servlets/purl/874409.
@article{osti_874409,
title = {Catheter guided by optical coherence domain reflectometry},
author = {Everett, Matthew and Colston, Billy W and Da Silva, Luiz B and Matthews, Dennis},
abstractNote = {A guidance and viewing system based on multiplexed optical coherence domain reflectometry is incorporated into a catheter, endoscope, or other medical device to measure the location, thickness, and structure of the arterial walls or other intra-cavity regions at discrete points on the medical device during minimally invasive medical procedures. The information will be used both to guide the device through the body and to evaluate the tissue through which the device is being passed. Multiple optical fibers are situated along the circumference of the device. Light from the distal end of each fiber is directed onto the interior cavity walls via small diameter optics (such as gradient index lenses and mirrored corner cubes). Both forward viewing and side viewing fibers can be included. The light reflected or scattered from the cavity walls is then collected by the fibers and multiplexed at the proximal end to the sample arm of an optical low coherence reflectometer. The system may also be implemented in a nonmedical inspection device.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

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